Uninstalling Navigraph Navdate (MSFS Beta) without a subscription

Dear Navigraph team,

I have a question regarding the Navigraph tool to install / uninstall the navdata for MSFS. For the moment I subsribed only for one month to test it.

Now just in case I want to uninstall the Navigraph navdata, the tool asks me to sign in. But I can’t sign in, as I don’t have an active subscription. Does this mean, that I need to buy an subscription just to uninstall the navdata and same if I want to reinstall the AIRAC I bought?

Thanks for your help,
fernandito